Hang-tight: In a relationship between a female and male where there MAY or may not be some type of phsyical attraction but there is definetly a type of friendly affectionate bond. Not neccesarily a girl/boyfriend but a relatively close friend. Only between two opposite sexes though...if two males become "hang-tights"...it's just gay.
2.Hang-tight can also be used as a term of affection to describe ones lover.